From: bugzilla-daemon@bugzilla.kernel.org
To: kvm@vger.kernel.org
Subject: [Bug 211109] New: Hard kernel freeze due to large cpu allocation.
Date: Sun, 10 Jan 2021 09:45:51 +0000 [thread overview]
Message-ID: <bug-211109-28872@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=211109
Bug ID: 211109
Summary: Hard kernel freeze due to large cpu allocation.
Product: Virtualization
Version: unspecified
Kernel Version: 5.9.9-95-tkg-MuQSS-llvm
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: kvm
Assignee: virtualization_kvm@kernel-bugs.osdl.org
Reporter: vytautas.mickus.exc@gmail.com
Regression: No
Allocating a large amount of vcpu (30,31) on a system with 32 threads (16 core
ryzen 3950x) causes hard freeze of the whole system. While 16-17 vcpu
allocation is fine.
This was seen while using minikube
```
minikube start --cni=calico --container-runtime=cri-o --cpus=$(($(nproc) - 1))
--driver=kvm2 -n 3
```
Last journal entry is:
```
Jan 10 10:14:51 rig libvirtd[2269]: operation failed: domain 'minikube' already
exists with uuid 4aacd29f-bd5f-418d-b267-42b79f75fbab
```
At which point minikube sees that the domain already exists and launches it.
Hard freeze is immediate.
OS:
Linux rig 5.9.9-95-tkg-MuQSS-llvm #1 TKG SMP PREEMPT Sun, 22 Nov 2020 07:41:26
+0000 x86_64 GNU/Linux
os-release:
```
NAME="Arch Linux"
PRETTY_NAME="Arch Linux"
ID=arch
BUILD_ID=rolling
```
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next reply other threads:[~2021-01-10 9:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-10 9:45 bugzilla-daemon [this message]
2021-01-10 9:48 ` [Bug 211109] Hard kernel freeze due to large cpu allocation bugzilla-daemon
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